Answer :

The correct option is a. 550 dm.

The 0.55 hectometers expressed in decimeters are 550 dm.

What is unit conversion?

Unit conversion is a multi-step process that involves multiplying or dividing by a numerical factor and, more specifically, a conversion factor.

  • The process may also necessitate selecting the appropriate amount of significant digits and rounding.
  • Different conversion units are employed to measure various parameters.
  1. Measuring Temperature
  2. Measuring Length
  3. Measuring Capacity
  4. Measuring Weight
  • Conversion of units is defined as the process of converting between different units & measurements of a given quantity using multiplication or division.
  • Conversion is the method of changing the amount of one form in terms of mathematics, such as inches to millimeters or liters to gallons.
  • Units are used in the measurement of length, weight, capacity, temperature, and speed.

To know more about unit conversion, here

https://brainly.com/question/13016491

#SPJ4